Grumpy Mule has some really good advice and I followed a similar line to help me tolerate myself when doing transcription.
Thank goodness for me all transcription is over as is the data collection stage. (Sorry I just needed to say this somewhere in public as I can hardly believe it myself. I flogged myself to have it done before December 24th!).
awsoci has some good advice as well but I would add a caveat to this. You do get twice as much mileage out of transcribed data when you do it yourself I believe. Having said this, if you have masses of interviews and it helps to get some transcription done for you then it is worth considering in the interests of managing your overall project. (And I understand completely why you would get things transcribed if it presented a health concern-absolutely).
Cheers and best of …
Pjlu